Finding the Fourth Proportional to 412,642.17, 618,963.26 and 272,367.99
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Solution
The fourth proportional to 412,642.17, 618,963.26 and 272,367.99 is: 408,551.99
Step by Step Solution
- Step 1: Write the proportion equation
412,642.17 : 618,963.26 = 272,367.99 : x - Step 2: Convert to fraction form
412,642.17/618,963.26 = 272,367.99/x - Step 3: Cross multiply
412,642.17x = 618,963.26 × 272,367.99 - Step 4: Simplify right side
412,642.17x = 168,585,779,010.05 - Step 5: Solve for x
x = 168,585,779,010.05/412,642.17 - Step 6: Final answer
x = 408,551.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.